Extrasolar planet search with the HAT network

Details Extrasolar planet search with the HAT network Extrasolar planet search with the HAT network

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006tafp.conf..184b&link_type=abstract

"Tenth Anniversary of 51 Peg-b: Status of and prospects for hot Jupiter studies. Colloquium held at Observatoire de Haute Proven

Astronomy and Astrophysics

Astrophysics

5

Scientific paper

We summarize the current status of the HAT Network project. Started up in 2003 with a single telescope, HATNet has grown to an array of six almost identical, fully automated, wide-field telescopes spread in geographical longitude, plus a higher resolution photometry follow-up instrument called TopHAT. The instruments are maintained and controlled from the Center for Astrophysics, and are fully dedicated to planetary transit and variability search. Photometric precision reaches 3mmag for stars at I≈8, and data from separate stations can be readily combined. TopHAT is able to achieve millimag follow-up photometry. As of June 2005, 100000 stars have been thoroughly analyzed (30000 with photometry better than 1%); numerous transit candidates have been found and followed up by spectroscopy or photometry. Most of these turned out to be false positives, with a few cases still pending.

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